Physical property is C.Density
Chromium is a fairly active metal. It does not react with water, but reacts with most acids. It combines with oxygen at room temperature to form chromium oxide (Cr 2 O 3 ). Chromium oxide forms a thin layer on the surface of the metal, protecting it from further corrosion (rusting).
0.000169 mol/g citric acid
I'll answer the first question: the answer is....a kilogram of bricks.
